<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2008 XBRL International. All Rights Reserved. -->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:eg="http://xbrl.org/formula/conformance/example" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" targetNamespace="http://xbrl.org/formula/conformance/example" elementFormDefault="qualified" attributeFormDefault="unqualified">
  <annotation>
    <appinfo>
      <link:roleType roleURI="http://xbrl.org/formula/conformance/example/role/linkForExplDimInSeg" id="linkForExplDim">
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://xbrl.org/formula/conformance/example/role/linkForTypedDimInSeg" id="linkForTypedDim">
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://xbrl.org/formula/conformance/example/role/linkForExplDimInScen" id="linkForExplDimInScen">
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://xbrl.org/formula/conformance/example/role/linkForTypedDimInScen" id="linkForTypedDimInScen">
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://xbrl.org/formula/conformance/example/role/linkFor3DimsInSeg" id="linkFor3DimsInSeg">
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://xbrl.org/formula/conformance/example/role/linkFor2DimsInSeg" id="linkFor2DimsInSeg">
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="bi-locational-dim-definition.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links, all" />
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <element id="typedDim1Value" name="typedDim1Value" type="string" />
  <element id="eg_ExplDim1" name="ExplDim1" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_ExplDim1Dom" name="ExplDim1Dom" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_ExplDim1Mbr1" name="ExplDim1Mbr1" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_ExplDim1Mbr2" name="ExplDim1Mbr2" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_ExplDim2" name="ExplDim2" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_ExplDim2Dom" name="ExplDim2Dom" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_ExplDim2Mbr1" name="ExplDim2Mbr1" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_ExplDim2Mbr2" name="ExplDim2Mbr2" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_HyperCube1" name="HyperCube1" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="instant" abstract="true" nillable="true" />
  <element id="eg_PriItem1" name="PriItem1" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" />
  <element id="eg_TypedDim1" name="TypedDim1" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="instant" abstract="true" nillable="true" xbrldt:typedDomainRef="#typedDim1Value" />
</schema>